Summary of sensory information presented in each of the seven blocks.

In all conditions, except the visDis baseline, a tactile stimulus is presented. This stimulus is accompanied with a single visual flash in the tactile & vis reaching block, and with either a single or a double visual flash to be discriminated in the tactile & visDis reaching block.除视觉失真（visDis）基线条件外，所有实验条件下均会呈现触觉刺激。在触觉-视觉到达任务区块中，该刺激会伴随单次视觉闪光；而在触觉-视觉失真（visDis）到达任务区块中，该刺激则会伴随单次或双次视觉闪光以供被试辨别。